kafka开启kerberos
一、基本环境准备
- 创建票据创建Kerberos主体（Principal）：
使用kadmin.local或kadmin命令为Zookeeper和Kafka服务创建Kerberos主体。例如：
注意有几台机器创建几个
kadmin.local -q "addprinc -randkey zookeeper/dshieldcdh01@HADOOP139.COM"
kadmin.local -q "addprinc -randkey zookeeper/dshieldcdh02@HADOOP139.COM"
kadmin.local -q "addprinc -randkey zookeeper/dshieldcdh03@HADOOP139.COM"
kadmin.local -q "addprinc -randkey kafka/dshieldcdh01@HADOOP139.COM"
kadmin.local -q "addprinc -randkey kafka/dshieldcdh02@HADOOP139.COM"
kadmin.local -q "addprinc -randkey kafka/dshieldcdh03@HADOOP139.COM"
- 验证主体是否创建成功
kadmin.local -q "listprincs"
[root@dshieldcdh02 ~]# kadmin.local -q "listprincs"
Authenticating as principal root/admin@HADOOP139.COM with password.
K/M@HADOOP139.COM
host/dshieldcdh01@HADOOP139.COM
host/dshieldcdh02@HADOOP139.COM
kadmin/admin@HADOOP139.COM
kadmin/changepw@HADOOP139.COM
kadmin/dshieldcdh02@HADOOP139.COM
kafka/dshieldcdh01@HADOOP139.COM
kafka/dshieldcdh02@HADOOP139.COM
kafka/dshieldcdh03@HADOOP139.COM
kiprop/dshieldcdh02@HADOOP139.COM
krbtgt/HADOOP139.COM@HADOOP139.COM
root/admin@HADOOP139.COM
zookeeper/dshieldcdh01@HADOOP139.COM
zookeeper/dshieldcdh02@HADOOP139.COM
zookeeper/dshieldcdh03@HADOOP139.COM
- 创建keytab
mkdir /etc/security/keytabs/
kadmin.local -q "xst -k /etc/security/keytabs/kafka.keytab kafka/dshieldcdh01@HADOOP139.COM"
kadmin.local -q "xst -k /etc/security/keytabs/kafka.keytab kafka/dshieldcdh02@HADOOP139.COM"
kadmin.local -q "xst -k /etc/security/keytabs/kafka.keytab kafka/dshieldcdh03@HADOOP139.COM"
- 验证KeyTab文件内容：
klist -kt /etc/security/keytabs/zookeeper.keytab
klist -kt /etc/security/keytabs/kafka.keytab
kinit -kt /etc/security/keytabs/zookeeper.keytab zookeeper/dshieldcdh02@HADOOP139.COM
- 将keytab文件拷贝到其他两天zookeeper上,需要将keytab文件拷贝过去才可以使用
scp /etc/security/keytabs/*keytab root@dshieldcdh01:/etc/security/keytabs/
scp /etc/security/keytabs/*keytab root@dshieldcdh03:/etc/security/keytabs/
- 在其他机器上验证keytab文件可用
kinit -kt /etc/security/keytabs/zookeeper.keytab zookeeper/dshieldcdh01@HADOOP139.COM
二、Zookeeper配置Kerberos
- 配置Zookeeper的JAAS文件：
在Zookeeper的配置目录下创建JAAS配置文件（如zookeeper_jaas.conf），内容如下：
java
Server {
com.sun.security.auth.module.Krb5LoginModule required
useKeyTab=true
storeKey=true
keyTab="/etc/security/keytabs/zookeeper.keytab"
principal="zookeeper/dshieldcdh01@HADOOP139.COM"
useTicketCache=false;
};
Client {
com.sun.security.auth.module.Krb5LoginModule required
useKeyTab=true
storeKey=true
keyTab="/etc/security/keytabs/zookeeper.keytab"
principal="zookeeper/dshieldcdh01@HADOOP139.COM"
useTicketCache=false;
};
注意修改principal和keyTab路径以匹配实际环境。
在Zookeeper的启动脚本中添加JVM参数，指定JAAS配置文件的路径。
配置zookeeper的kerberos验证，切换到配置文件目录下cd conf，添加zoo.cfg配置文件，cp zoo_sample.cfg zoo.cfg打开zoo.cfg配置文件，添加配置，修改Zookeeper的配置文件cat zoo.cfg 启用SASL认证，并指定认证提供者。
authProvider.1=org.apache.zookeeper.server.auth.SASLAuthenticationProvider
jaasLoginRenew=3600000
kerberos.removeHostFromPrincipal=true
kerberos.removeRealmFromPrincipal=true
export JVMFLAGS="-Djava.security.auth.login.config= /usr/local/apache-zookeeper-3.6.4/conf/zookeeper_jaas.conf"
scp /usr/local/apache-zookeeper-3.6.4/conf/zookeeper_jaas.conf root@dshieldcdh02:/usr/local/apache-zookeeper-3.6.4/conf
scp /usr/local/apache-zookeeper-3.6.4/conf/zookeeper_jaas.conf root@dshieldcdh03:/usr/local/apache-zookeeper-3.6.4/conf
[root@dshieldcdh03 ~]# cat /usr/local/apache-zookeeper-3.6.4/conf/zookeeper_jaas.conf
Server {
com.sun.security.auth.module.Krb5LoginModule required
useKeyTab=true
storeKey=true
useTicketCache=false
keyTab="/etc/security/keytabs/zookeeper.keytab"
principal="zookeeper/dshieldcdh03@HADOOP139.COM";
};
cat /usr/local/apache-zookeeper-3.6.4/conf/zookeeper_client_jaas.conf
Client {
com.sun.security.auth.module.Krb5LoginModule required
useKeyTab=true
storeKey=true
useTicketCache=false
keyTab="/usr/local/apacje-zookeeper-3.6.4/conf/zk.service.keytab"
principal="zookeeper/dshieldcdh03@HADOOP139.COM";
};
三、Kafka配置Kerberos
将kafka用户的keytab文件拷贝到其他服务器上
scp /etc/security/keytabs/kafka.keytab root@ dshieldcdh02:/etc/security/keytabs/kafka.keytab
配置Kafka的JAAS文件：
在Kafka的配置目录下创建JAAS配置文件（如kafka_client_jaas.conf），内容如下：
kafka_client_jaas.conf
KafkaServer {
com.sun.security.auth.module.Krb5LoginModule required
useKeyTab=true
keyTab="/etc/security/keytabs/kafka.keytab"
storeKey=true
useTicketCache=false
serviceName="kafka"
principal="kafka/dshieldcdh01@HADOOP139.COM";
};
KafkaClient {
com.sun.security.auth.module.Krb5LoginModule required
useKeyTab=true
keyTab="/etc/security/keytabs/kafka.keytab"
storeKey=true
useTicketCache=false
serviceName="kafka"
principal="kafka/dshieldcdh01@HADOOP139.COM";
};
Client {
com.sun.security.auth.module.Krb5LoginModule required
useKeyTab=true
keyTab="/etc/security/keytabs/zookeeper.keytab"
storeKey=true
useTicketCache=false
serviceName="zookeeper"
principal=" zookeeper/dshieldcdh01@HADOOP139.COM";
};
com.sun.security.jgss.krb5.initiate {
com.sun.security.auth.module.Krb5LoginModule required
renewTGT=false
doNotPrompt=true
useKeyTab=true
keyTab="/etc/security/keytabs/kafka.keytab"
storeKey=true
useTicketCache=false
serviceName="kafka"
principal="kafka/dshieldcdh01@HADOOP139.COM";
};
kafka_server_jaas.conf
KafkaServer {
com.sun.security.auth.module.Krb5LoginModule required
useKeyTab=true
keyTab="/etc/security/keytabs/kafka.keytab"
storeKey=true
useTicketCache=false
serviceName="kafka"
principal="kafka/dshieldcdh01@HADOOP139.COM";
};
KafkaClient {
com.sun.security.auth.module.Krb5LoginModule required
useKeyTab=true
keyTab="/etc/security/keytabs/kafka.keytab"
storeKey=true
useTicketCache=false
serviceName="kafka"
principal="kafka/dshieldcdh01@HADOOP139.COM";
};
Client {
com.sun.security.auth.module.Krb5LoginModule required
useKeyTab=true
keyTab="/etc/security/keytabs/zookeeper.keytab"
storeKey=true
useTicketCache=false
serviceName="zookeeper"
principal=" zookeeper/dshieldcdh01@HADOOP139.COM";
};
com.sun.security.jgss.krb5.initiate {
com.sun.security.auth.module.Krb5LoginModule required
renewTGT=false
doNotPrompt=true
useKeyTab=true
keyTab="/etc/security/keytabs/kafka.keytab"
storeKey=true
useTicketCache=false
serviceName="kafka"
principal="kafka/dshieldcdh01@HADOOP139.COM";
};
注意修改principal、keyTab路径和serviceName以匹配实际环境。
修改Kafka的启动脚本：
在Kafka的启动脚本中添加JVM参数，指定JAAS配置文件的路径。
cat kafka_client_jaas.conf
kafkaClient {
com.sun.security.auth.module.Krb5LoginModule required
useKeyTab=true
storeKey=true
serviceName=kafka
keyTab="/etc/security/keytabs/kafka.keytab"
principal="kafka/dshieldcdh01@HADOOP139.COM";
};
cat server.properties
broker.id=1
hostname=dshieldcdh01
listerners=SASL_PLAINTEXT://dshieldcdh01:9092
security.inter.broker.protocol=SASL_PLAINTEXT
sasl.mechanism.inter.broker.protocol=GSSAPI
sasl.enabled.mechanisms= GSSAPI
sasl.kerberos.service.name=kaka
zookeeper.connect=dshieldcdh01:2181, dshieldcdh02:2181, dshieldcdh03:2181
zookeeper.set.acl=true
zookeeper.connection.timeout.ms=18000
[kafka@dshieldcdh01 config]$ pwd
/usr/local/kafka/config
[kafka@dshieldcdh01 config]$ scp kafka_jaas.conf dshieldcdh02:/usr/local/kafka/config
scp kafka_jaas.conf dshieldcdh03:/usr/local/kafka/config
#kerberos
listeners=SASL_PLAINTEXT://ambarim2:9092
advertised.listeners=SASL_PLAINTEXT://ambarim2:9092
security.inter.broker.protocol=SASL_PLAINTEXT
sasl.mechanism.inter.broker.protocol=GSSAPI
principal.to.local.class=kafka.security.auth.KerberosPrincipalToLocal
isasl.enabled.mechanisms=GSSAPI
zookeeper.connect=dshieldcdh01:2181,dshieldcdh02:2181,dshieldcdh03:2181